NBER Publications by Nicolas A. Roys

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November 2015Training and Search On the Job
with Rasmus Lentz: w21702
The paper studies human capital accumulation over workers' careers in an on the job search setting with heterogenous firms. In renegotiation proof employment contracts, more productive firms provide more training. Both general and specific training induce higher wages within jobs, and with future employers, even conditional on the future employer type. Because matches do not internalize the specific capital loss from employer changes, specific human capital can be over-accumulated, more so in low type firms. While validating the Acemoglu and Pischke (1999) mechanisms, the analysis nevertheless arrives at the opposite conclusion: That increased labor market friction reduces training in equilibrium.
December 2012Size-Dependent Regulations, Firm Size Distribution, and Reallocation
with François Gourio: w18657
In France, firms with 50 employees or more face substantially more regulation than firms with less than 50. As a result, the size distribution of firms is visibly distorted: there are many firms with exactly 49 employees. We model the regulation as the combination of a sunk cost that must be paid the first time the firm reaches 50 employees, and a payroll tax that is paid each period thereafter when the firm operates with more than 50 employees. We estimate the model using indirect inference by fitting the discontinuity of the size distribution. The key finding is that the regulation is equivalent to a combination of a sunk cost approximately equal to about one year of an average employee salary, and a small payroll tax of 0.04%. Our structural model fits well the discontinuity in the size...

Published: François Gourio & Nicolas Roys, 2014. "Size‐dependent regulations, firm size distribution, and reallocation," Quantitative Economics, Econometric Society, vol. 5, pages 377-416, 07. citation courtesy of

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